diff --git a/.gitignore b/.gitignore
index fe38cb6027..aee909766f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,5 @@ docs/.sass-cache
 *.swp
 
 *.lock
+
+*.gcov
diff --git a/.slather.yml b/.slather.yml
new file mode 100644
index 0000000000..ef84e32dea
--- /dev/null
+++ b/.slather.yml
@@ -0,0 +1,5 @@
+ci_service: travis_ci
+coverage_service: coveralls
+xcodeproj: AsyncDisplayKit.xcodeproj
+source_directory: AsyncDisplayKit
+
diff --git a/.travis.yml b/.travis.yml
index 35dc2d00eb..8899c440c9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ before_install:
   - brew update
   - brew reinstall xctool
   - gem install cocoapods -v 0.37.2
+  - gem install slather
   - xcrun simctl list
 install: echo "<3"
 env:
@@ -10,6 +11,8 @@ env:
   - MODE=examples
   - MODE=life-without-cocoapods
 script: ./build.sh $MODE
+after_success:
+  - slather
 
 # whitelist
 branches:
diff --git a/AsyncDisplayKit.xcodeproj/project.pbxproj b/AsyncDisplayKit.xcodeproj/project.pbxproj
index 6c4132aa8d..3f6adff9cd 100644
--- a/AsyncDisplayKit.xcodeproj/project.pbxproj
+++ b/AsyncDisplayKit.xcodeproj/project.pbxproj
@@ -1681,6 +1681,8 @@
 				COPY_PHASE_STRIP = NO;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_GENERATE_TEST_COVERAGE_FILES = YES;
+				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
@@ -1718,6 +1720,8 @@
 				COPY_PHASE_STRIP = YES;
 				ENABLE_NS_ASSERTIONS = NO;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_GENERATE_TEST_COVERAGE_FILES = YES;
+				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000000..23a1d057af
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem 'slather'
\ No newline at end of file
diff --git a/README.md b/README.md
index 537da9a85e..926873e09a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 ![AsyncDisplayKit](https://github.com/facebook/AsyncDisplayKit/blob/master/docs/assets/logo.png)
 
 [![Build Status](https://travis-ci.org/facebook/AsyncDisplayKit.svg)](https://travis-ci.org/facebook/AsyncDisplayKit)
+[![Coverage Status](https://coveralls.io/repos/facebook/AsyncDisplayKit/badge.svg?branch=master)](https://coveralls.io/r/facebook/AsyncDisplayKit?branch=master)
  [![Version](http://img.shields.io/cocoapods/v/AsyncDisplayKit.svg)](http://cocoapods.org/?q=AsyncDisplayKit)
  [![Platform](http://img.shields.io/cocoapods/p/AsyncDisplayKit.svg)]()
  [![License](http://img.shields.io/cocoapods/l/AsyncDisplayKit.svg)](https://github.com/facebook/AsyncDisplayKit/blob/master/LICENSE)
diff --git a/smoke-tests/Life Without CocoaPods/Life Without CocoaPods.xcodeproj/project.pbxproj b/smoke-tests/Life Without CocoaPods/Life Without CocoaPods.xcodeproj/project.pbxproj
index 4d01b90df2..3a7e63f9d1 100644
--- a/smoke-tests/Life Without CocoaPods/Life Without CocoaPods.xcodeproj/project.pbxproj	
+++ b/smoke-tests/Life Without CocoaPods/Life Without CocoaPods.xcodeproj/project.pbxproj	
@@ -195,6 +195,8 @@
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_GENERATE_TEST_COVERAGE_FILES = YES;
+				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
@@ -236,6 +238,8 @@
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_GENERATE_TEST_COVERAGE_FILES = YES;
+				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;